Trying to get pregnant is certainly one decision that will change the entire course of your life.

Of course, before doing anything different, talk to your doctor or medical professional.

As for what you should steer clear of if you and your partner are trying to get pregnant?

A woman holding a pregnancy test

As it turns out, there are a lot of things you should definitely skip out on.

Kecia Gaither, a double board-certified physician in OB/GYN and maternal fetal medicine.

Plus, smoking decreases your fertility, as noted byCleveland Clinic.

A cigarette split in half with tobacco falling out

This activity can reportedly impair fertility and pregnancy outcomes, so it’s best to focus on cessation altogether.

Wondering what to expect when you stop?

Here’swhat happens to your body when you quit smoking.

A woman’s feet stepping onto a scale

“A healthy weight can be measured by one’s body mass index (BMI).”

“Strive for a BMI between 18.5 and 24.9 as this is considered a healthy weight.”

But for some couples, regular intimacy may be quite stressful given the goal-oriented aspect of it.

Women doing yoga in a studio

So don’t get too crazy with your planning, as you want to be able to enjoy yourselves.

Stressing out in general isn’t good for your fertility either, according to the journalDialogues in Clinical Neuroscience.

That’s also the case for most pregnant people as well, as noted byMayo Clinic.

A woman running up stairs by a beach

However, the problem arises not with a specific exercise, but over-exercising in general.

That’s something you should avoid if you’re trying to get pregnant, says certified personal trainerSara Haley.

“Are you a cardio junkie?

Hands rolling marijuana cigarettes

Do you lift heavy multiple days of the week?”

If so, check in with your doctor or fitness coach to verify you’re not overdoing it.

Haley says it’s also important to treat your body as though you have already conceived as well.

A burger, fries, and chicken nuggets from above

“Ask yourself, ‘Would I work out like this if I were pregnant?'”

“If you want to be pregnant, start exercising like you are.”

“Marijuana can lead to low sperm motility and diminished libido, thereby reducing lovemaking.”

A woman making spaghetti and sauce in her kitchen

And that’s the last thing you need if you’re trying to have a baby!

So, total cessation is the way to go.

Trying to get pregnant?

Sashimi in a bowl with garnishes

Don’t eat trans fats

It should come as no surprise that ahealthy diet is importantwhen you’re pregnant.

Specifically, trans fats can cause inflammation and insulin resistance, which in turn can lower your fertility.

Even men should avoid trans fats, as they can lower sperm quality and count!

A woman getting vaccinated

News & World Report.

Also, opt for full-fat dairy as opposed to reduced fat, but avoid unpasteurized soft cheeses.

Low-fat dairy products may contain androgens, and soft cheeses could contain listeria.

A woman drinking soda in a car

“Most women even need special supplementation right around the time of conception,” she continued.

“So talk to your doctor about when and what supplements you will need to take.”

So save the sushi for later.

Ariel view of coffee drinks

If you’re not a meat eater to begin with, there’s some good news for you!

Indeed there are some best practices to follow to ensure your safety, says board-certified pediatricianDr.

“At this time, just as when you are pregnant, some routinevaccinesare contraindicated.”

A woman asleep in bed

Thisincludes vaccinesforHPV; measles, mumps, and rubella (MMR); and chickenpox.

Timing is also an issue when it comes to vaccination and conception, as noted by Iannelli.

As always, talk to your doctor if you have questions or concerns.

Sliced tuna with rosemary and salt

As registered dietitian Lily Nichols toldU.S.

News & World Report,spiking your blood sugardecreases your fertility.

Cut down on your caffeine when you’re trying to get pregnant

Mmm,coffee.

A woman’s hands eating breakfast

Who doesn’t love that first steamy sip first thing in the morning?

So it’s probably best to lay off the energy drinks!

“That’s a whopping 400 [percent] increase!”

So don’t skimp on your shuteye!

Night shift workers are especially vulnerable to losing sleep.

For one, mercury can decrease fertility, according to the journalReproductive Toxicology.

That doesn’t mean that you could’t eat fish whatsoever when you’re trying to get pregnant thank goodness!