Hi and welcome to XXXXXXX
Thanks for the query.
Of course it is alright and there wont be any,even theoretical, consequances for the baby or for her.The amount of blood taken for these tests is minor and there is no change in hemodinamics or oxygen
supply in placenta. All these findings can be measured in one small test tube. Blood tests are routinely taken in pregnancies as it may show some serious disorders such as eclampsy or diabetes
. so it is much better to check blood findings and prevent and treat possible disorders. Wish you good health. Feel free to ask. Regards