Swim suits

Sa

Tell me what you all are planning to wear/wore with your past pregnancies? With my first son, I didn't get larger until the 3rd trimester and he was born in Feb so I didn't have to buy a swim suit. With this baby, I weigh about what I did when I delivered my first and I'm only 16 weeks. Can I wear a regular tankini and size up or should I just buy a maternity swim suit?