Your partner and you need not abstain from physical intimacy. You won’t harm the baby. Try different lovemaking positions as it is not advisable to put pressure on your growing abdomen. Consider the side lying position or the woman on top position, whatever makes you feel comfortable. This a great time to get creative!
Make sure you ask your doctor, if you have doubts regarding sex during pregnancy. If you have a complicated pregnancy, your doctor may advise you to avoid sex till you step into the second trimester. Till then, you and and your partner can it alive with hugs, kisses and cuddles.