What to expect when you're expecting?

Hello all. A couple days ago my husband and I found out that I was pregnant and we are all quite excited. I woke up this morning feeling nausea and my stomach was bothering me. Usually when my stomach bothers me I go into our sauna and it makes me feel better. I did that but ended up back in bathroom vomiting all morning long. So far I'm not really enjoying this pain but I know it will be worth it in 9 months. We have BBQ every week with our family and we relax and enjoy a movie in the spa. I was wondering if being in the pool or spa is harmful at all to the baby, or going into the sauna. Please no rude, unnecessary, or inappropriate comments. Thank you in advanced! Xoxo